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Vacuum Load Switch Fuse Combined Apparatus

Short Description:

GPL-24 movable vacuum switch and GPLR-24 movable vacuum switch-fuse combination, is our company new medium voltage switchgear generation products, which combine the needs of users and the advanced technology in China and abroad, and its characterized is withdrawable, small size, compact structure, novel, the same shape with VEP. The unique electric combination innovative design enables three-phase fuse level Installation in the load switch on the upper side, and while the fuse is insert-pull type, so the fuse can be replaced quickly and easily. Load switch and fuse combination are the main components in ring electric power supply unit, which Is widely used in industrial and mining enterprises, residential district, hospitals, schools, parks, secondary substations and distribution system. It is the best choice of most effective protection of transformers, high voltage motors, arc suppression coil.


Product Detail

Product Tags

Model and Meaning

1

Ambient Condition

Environment temp: Max. temp. +40℃; Min. temp. -15℃
Environment humidity: Relative humidity per day ≤ 95%; Relative humidity per month ≤ 90
Altitude of site where the Switch service in can reach 1000m
For special service condition, please contact manufacturer

Reference Standard

GB3804-2004 High-Voltage alternating-current switches for rated voltage above 3.6kV and up to and including 40.5kV
GB16926-2009 High-Voltage alternating-current switch-fuse combinations
GB/T11022-1999 Common specifications for high-voltage switchgear and controlgear standards

Main Technical Parameters of Switch

Name

Unit

Switch

GPL-24/T630-20

Switch-fuse Combination

GPLR-24/T125-40

Rated voltage

kV

24

24

Rated frequency

Hz

50

50

Rated current

A

630

125 (as per fuse)

Rated

Insulation

level

1min power frequency withstand voltage

kV

Terminal contacts with breakers open 65;

Phase to phase, phase to earth 65

Lightening impulse withstand voltage

kV

Phase to phase, phase to earth 125 ;

Terminal contacts with isolators open 125

Rated short circuit breaking current

kA

40

Active load breaking current

A

630

Rated closing loop breaking current

A

630

Active load low current breaking

A

31.5

Rated cable charging breaking current

A

16

16

Rated short circuit making current (peak)

kA

50

100

Rated short time withstand current

kA

20

Rated short time withstand current duration

S

4

Rated peak withstand current

kA

50

Rated take-over current

A

3150

Circuit resistance

μΩ

≤150

≤250+ Fuse

Motor power

W

90

Moving and fixed contact permissible abrasion accumulative thickness

mm

3

Clearance between open contacts

mm

12±1

Contact closing bouncing time

ms

≤2

3-phase asynchronous

ms

≤2

Average closing speed

m/s

0.8±0.2

Average opening speed

m/s

1.3±0.2

Mechanical endurance

Times

10000

Main Technical Parameters of Motor

Name

Unit

Parameters

Rated operation voltage

V

AC/DC 110/220

Rated power input

W

80

Normal voltage range of charging motor

85%~110% Rated operation voltage

Charging time

s

≤15

Main Technical of Coil

Name

Unit

Parameters

Rated operation voltage

V

AC, DC110

AC, DC220

Rated operation current

A

≤3

≤2

Normal voltage range of close coil

85%~110% Rated operation voltage

Normal voltage range of trip coil

65%~120% Rated operation voltage

Structure and Function

GPL(R) type switch consist of operating mechanism and arc-extinguish chambers in front-back arrangement, its main conductive circuit is of floor model structure. The vacuum arc-extinguish chamber is fixed in a vertical cannular insulation column structure made of epoxy resin by APG technology, therefore with very good anti-creepage Such structure design great that reduces the accumulation of dusts on the surface of vacuum arc-extinguish chamber, it not only can prevent the vacuum extinguish chamber from outside influence, but also can ensure to present high resistance state against the voltage effect even in warm-wet climate or heavy pollution environment.

The spring operating mechanism arranged in plane disposal can be charged by manual or motor, the operating mechanism located in the iron box fixed in front of arc-extinguish chamber. The box is divided into five assembly space by four clapboards, in this space there are charging section, diving section, releasing section and buffer of mechanism separately. The structure of GPL(R) type switch which the operating mechanism and arc-extinguish chambers are arranged into an integrate front-back layout can match well the operating performance of operating mechanism and the performance needed for breaking and making of arc-extinguish chamber. Also, can reduce the needless midway terms and reduce the noise and energy consumed therefore to lead the operation performance of GPL(R) much reliable.

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